Dozers
844 Wheel Dozer
Engine
- Engine Model
- C27 Cat®
- Rated Speed
- 1800 r/min
- Gross Power
- 752 hp
- Gross Power
- 766 hp
- Net Power
- 699 hp
- Net Power
- 648 hp
- Bore
- 5.4 in
- Stroke
- 6 in
- Displacement
- 1649.5 in³
- Peak Torque
- 2624 lb/ft
- Torque Rise
- 18 %
- Emissions
- U.S. EPA Tier 4 Final and EU Stage V or China Nonroad Stage III Emissions standards, equivalent to U.S. EPA Tier 2
Operating Specifications
- Operating Weight
- 165089 lb
- Blade Capacities
- 15.9 - 30.7 m3 (20.7 - 40.2 yd3)
Transmission
- Transmission Type
- Cat Planetary Power Shift
- Converter Drive
- 4.5 mile/h
- Converter Drive
- 8.3 mile/h
- Converter Drive
- 14.2 mile/h
- Converter Drive
- 4.9 mile/h
- Converter Drive
- 9.1 mile/h
- Converter Drive
- 15.5 mile/h
- Direct Drive
- Lock-up disabled
- Direct Drive
- 8.5 mile/h
- Direct Drive
- 15.2 mile/h
- Direct Drive
- 5.4 mile/h
- Direct Drive
- 9.6 mile/h
- Direct Drive
- 16.4 mile/h
Hydraulic System - Lift/Tilt
- Output at 2
- 82 gal/min
- Cylinders
- 133 mm × 1535 mm (5.25 in × 60.4 in)
- Cylinder
- 210 mm × 188 mm (8.25 in × 7.4 in)
- Relief Valve Setting
- 2700 psi
- Relief Valve Setting
- 2920 psi
Hydraulic System - Steering
- Steering System
- Pilot, load sensing
- Steering System
- Piston, variable displacement
- Minimum Turning Radius
- 34 ft
- Total Steering Angle
- 35 °
- Maximum Flow
- 94.3 gal/min
- Relief Valve Setting
- 4500 psi
Service Refill Capacities
- Fuel Tank
- 286.6 gal (US)
- Cooling System
- 54.9 gal (US)
- Crankcase
- 20 gal (US)
- Transmission
- 29.1 gal (US)
- Differential
- 71.6 gal (US)
- Differential
- 68.9 gal (US)
- Hydraulic System
- 68.9 gal (US)
- Hydraulic System
- 34.9 gal (US)
Air Conditioning System
- Air Conditioning
- The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.8 kg of refrigerant which has a CO2 equivalent of 2.574 metric tonnes.
Axles
- Front
- Fixed
- Rear
- Trunnion
- Oscillation Angle
- 8.5 °
Brakes
- Brakes
- Meets ISO 3540:2011
Sound Performance - Standard
- Operator Sound Level
- 69 dB(A)
- Machine Sound Level
- 115 dB(A)
Sound Performance - Suppression
- Operator Sound Level
- 69 dB(A)
- Machine Sound Level
- 113 dB(A)
Cab
- ROPS
- ISO 3471:2008 and ISO 3449:2005 Level II Standards
Dimensions (Approximate)
- Height
- 17.2 ft
- Height
- 16.6 ft
- Height
- 12.7 ft
- Ground Clearance
- 2 ft
- Centerline of Front Axle to Hitch
- 7.5 ft
- Centerline of Rear Axle to Edge of Bumper
- 12.5 ft
- Wheel Base
- 15.1 ft
- Length
- 36.5 ft
-
NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
-
OPERATOR ENVIRONMENT
- Air conditioner and heater with automatic temperature control
- Cab, sound-suppressed pressurized, protective structure (ROPS/FOPS), radio ready for (entertainment) includes antenna, speakers and converter (12V, 10-15 amp)
- 12V power port for mobile phone or laptop connection
- Cigar lighter and ashtray
- Coat hook
- Electro-hydraulic blade controls (joystick)
- Flip-up armrest
- Heater and defroster
- Horn, electric
- Instrumentation, gauges: - Engine coolant temperature - Fuel level - Ground speed - Gear - Hydraulic oil temperature - Speedometer/tachometer - Torque converter temperature
- Instrumentation, warning indicators: - Action alert system, three category - Automatic transmission model enable status - Brake malfunction - Bucket float status - Delayed engine shutdown status - Engine idle shutdown status - Engine malfunction - Fuel economy mode enable status - Hydraulic lockout - Lockup clutch enable status - Low fuel level - Parking brake status - Rimpull control enable status - Seatbelt warning - Secondary steering (if equipped) - Throttle lock status - Transmission gear
- Keypad, control with indicator lights: - Auto trans mode speed range - Auto/manual transmission mode - Lockup clutch - Reduced rimpull - Throttle lock
- Light, dome (cab)
- Lunchbox and beverage holders
- Mirrors, rearview (externally mounted)
- Seat, premium with heated and actively cooled leather, adjustable lumbar support, air adjustable bolsters on the seat and backrest, seat cushion tilt adjustment, and adjustable-length seat cushion
- STIC control system with steering lock
- Tinted glass
- Wet-arm wipers/washers (front, rear and corner) intermittent front wiper
- Converter (12V, 10/15 amp) and power port
-
POWER TRAIN
- Brakes, oil cooled, multi-disc, service/secondary
- Axle-shaft oil-disc service brake
- Electro hydraulic parking brake
- Cat clean emission module (Tier 4 only)
- Demand fan
- Engine Cat C27
- Fuel priming pump (electric)
- Ground level engine shutoff
- Mufflers (under hood) (Tier 2 only)
- Precleaner, engine air intake
- Radiator, Aluminum Modular (AMR)
- Separated cooling system
- Starting aid, (ether) automatic
- Throttle Lock electronic
- Torque Converter, Impeller Clutch with lock-up clutch feature and rimpull control system
- Transmission, 534 mm (21 in) planetary power shift (electronic) (3F/3R)
-
ELECTRICAL
- Alternator, 150 amp
- Batteries, maintenance free (4 - 1,400 CCA)
- Deutsch terminal connectors
- Electrical system, 24V
- Electronic transmission control
- Lighting system, halogen (front and rear) lighting, access stairway, engine compartment
- Starting and charging system, 24V
- Starter lockout in bumper
- Starting receptacle for emergency start
- Transmission lockout in bumper
-
SERVICE
- Vital Information Management System (VIMS) 3G with graphical information display: external data port, customizable operator profiles
- Case drain filters
- Coupling, Caterpillar O-ring face seals
- Guards, crankcase and power train
- Hitch, drawbar with pin
- Hoses, Cat XT
- Oil sampling valves
- Product Link™
-
SAFETY
- Camera, rear vision
- Implement lockout switch
- Seat belt, retractable, 76 mm (3 in) wide
- Trainer seat with lap belt
- Alarm, back-up
- Emergency platform egress
- Stairway, left and right rear access
- Steering, secondary
- Toe kicks
-
TRAMMING
- Fenders, steel (front)
-
OTHER
- Axle temperature sensor
- Battery disconnect and jump start receptacle, bumper
- Economy mode with on demand throttle
- Engine, crankcase, 500 hour interval with CH4
- Engine idle management features: - Auto idle kickdown - Delayed engine shutdown - Engine idle shutdown
- Grouped/labeled lube points
- Positive flow control hydraulic system
- Sight Gauges: hydraulic tanks, steering/fan and implement/brake, and transmission
- Steering, load sensing
- Vandalism protection caplocks
- Premixed 50% concentration of extended life coolant with freeze protection to -34° C (-29° F)
-
NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
-
POWER TRAIN
- 50° C (-58° F) antifreeze
- Engine oil change system, high speed, Wiggins
- Engine block heater 120V or 240V
- High ambient cooling - software
-
BLADES
- Semi-U - 17.8 m3 (23.3 yd3)
- HD Semi-U - 16.1 m3 (21.1 yd3)
- Coal - 30.7 m3 (40.2 yd3)
-
OPERATOR ENVIRONMENT
- Cab precleaner
- AM/FM/MP3 radio
- Satellite Sirius radio with Bluetooth
- LED warning strobe
- CB radio ready
- Window sun shade
-
TRAMMING
- Front and rear roading fenders
-
MISCELLANEOUS ATTACHMENTS
- Fast fill fuel system (Shaw-Aero)
- Axle oscillation stop
- Paint, black blade rear
-
OTHER
- Venturi stack
- $59,500 2021 Cat 272D3XE
- $193,000 2022 Cat 315-07
- 2022 Cat D8T
- $98,500 2019 Cat D3K2LGP
- 2022 Cat D8T
-
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